Questions tagged [imap]

IMAP stands for Internet Message Access Protocol and is the other e-mail protocol along with POP.

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48 views

Incoming external email appeared in Postfix log, but not in mailbox

I setup Postfix + Dovecot (with IMAP) for my Ubuntu 16.04 email server. I sent an email from Gmail to my domain, I can see the postfix log "reacts" with the incoming email, but the incoming ...
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1answer
36 views

Postfix dovecot unable to authenticate

I use to work with postfix/sasl/courrier-auth on Gentoo for years. I just migrated to Debian 10 postfix/dovecot. I'm unable to make it work : Send mail ok, TLS ok. But unable to authenticate (SMTP 587,...
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60 views

dovecot: imap-login: Aborted login (auth failed, 2 attempts in 2 secs) - usually working - perhaps timeout issue? Debug options?

I have a mail server with a few dozen IMAP accounts. The configuration is correct for each account, every one of them tests OK. When a client from a particular, very slow Internet connection attempts ...
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51 views

Are SMTPS and IMAPS ports really deprecated?

I've read that STARTTLS command was added and intended to deprecate the SSL ports. But even major mail servers like google still use SSL ports and even don't allow us to use classic ports with ...
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35 views

Is there a way to force logout/relogin of IMAP user?

As an admin of a Mail server, I would like to force logged-in users of an email account (e.g. in their Outlook, Thunderbird) to login again with new password and prevent everyone from sending/...
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16 views

Can davmail be setup in a read-only way?

I have davmail setup to connect to Office 365 and expose calendar functionality through caldav. It appears it (or a caldav client connected to it) triggers some unwanted mails being sent by Exchange ...
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1answer
71 views

Why went dovecot pop3/imap server down?

The VPS went at some point down, I am watching the log but do not understand why went down and how it could be fixed to avoid outages in the future. The logs I have available for the time of the event:...
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1answer
149 views

postfix does local delivery instead of via dovecot lmtp

Sieve isn't running on my system, and it looks like the reason why is that postfix is doing local maildir delivery instead of going through dovecot. Details: System: Ubuntu 20.10 /etc/postfix/main.cf: ...
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59 views

Exchange Server tries to reach old proxy

We recently replaced our old proxy. We noticed that our Exchange Server (2016 CU4) still tries to reach the old proxy over port 8080. Upon further investigation via Process Monitor, it seems that the ...
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1answer
26 views

Mbox files not shown on client over IMAP after restore from backup

The story: the HDD containing user /home/* directories with Mboxes died. I restored them from a backup to another machine and mounted the whole structure back to the original imap's server /home ...
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1answer
67 views

E-mail transmission example

RFC standards literally force us to accept unencrypted connections on port 25. To understand why, we have to understand how emailing works. But emailing is quite a complex topic and I created this ...
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Apple iPhone “mobileconfig” for mail setup with S/MIME cert+key and defaults: always sign, Encrypt by Default. Compose: error message. bug?

Goal: Build mobileconfig for iPhone users, which will include all their email settings, and S/MIME cert for signing and encrypting -- everything necessary for them to start sending encrypted and ...
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27 views

install Fileinfo extension m imap extension

i have an issue when install Mailwizz , i see missing File info extension , IMAP Extension php version : 7.2 OS : Ubuntu 16.04 i tried to install using below code (sudo apt install php-imap) after ...
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27 views

Folders gone after Cyrus upgrade/migration?

I'm attempting a migration/upgrade of our company's mail server from Ubuntu Server 9.04 with Cyrus v2.2.13-Debian-2.2.13-14ubuntu3 to Debian 10.6 with Cyrus 3.0.8-Debian-3.0.8-6+deb10u4 After ...
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2answers
54 views

When do static files get retrieved during SMTP?

Alice is sending Bob an email message. It includes some large static content somehow. From my very basic understanding of email you can just send a HTML message, so let's say that the HTML includes an ...
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20 views

Where to find imap/pop3 data for email - from ovh to google workspace

When I bought domain in ovh I chose it with MX plan (without creating email account). Then I added this domain to mailgun for sending emails from webpage and to google workspace (g suite) as domain ...
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1answer
184 views

How To configure Postfix and Dovecot for remote IMAP / POP sending of email on Fedora 32

Background I've been the administrator since inception of this 24-ish year old site which hosts a lot of virtual domains, etc, and from the late '90s one important feature we had working was allowing ...
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2answers
56 views

Strange Outlook Addressing problems

We are seeing a new problem with Outlook this past month. Outlook is generating email messages with valid envelope recipients, but INVALID Body Header recipients. Because a receiving user replies on ...
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1answer
562 views

Mail error 550 Maximum line length exceeded (RFC 5322 2.1.1)

I have a reseller hosting account containing a couple of domains. One of our clients has recently been complaining about emails not being sent. They are receiving the error "550 Maximum line ...
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228 views

Dovecot+Postfix: dovecot-lmtp does not do anything

I've been trying to fix this incoming mail issue all week. I've tried so many things and have hit one roadblock after the other. I have also followed the documentation/walkthroughs to a T and I've ...
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25 views

Email Attachment File Timestamps

Using Outlook or any other email client, I have noticed that when saving attachment files from emails via IMAP the created and moddified timestamps are set to the timestamp of the operation. Whereas ...
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1answer
185 views

Exchange 2010 won't allow IMAP connections over PlainText authentication

I have IMAP enabled for the server, the IMAP4 service running, and IMAP enabled for the account. This is Exchange 2010 server. Emails work fine, but when I try to login over IMAP I get the following ...
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1answer
1k views

How to enable IMAP php extension on aws EC2 instance

I've tried every way to install imap php extension but I couldn't do it. I am using amazon web service EC2 instance and it has CentOS. while yum search *-imap.* I found a package from cyrus-imap.* but ...
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40 views

Postfix SMTP Auth failed

im running postfix but i cant get smtp to work imap works without any issues with ssl now when i want to send an email i get authentication failed here is the log Aug 21 04:59:55 server imapd: ...
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146 views

Dovecot mail_crypt corrupted index cache

I have a an email server which uses dovecot as the imap server, i wanted to implement local mail encryption so i decided to use the mail_crypt dovecot plugin using the below documentation. https://doc....
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88 views

Postfix - Sieve redirect and SMTP relay

I have a mail server (Postfix/Dovecot/ISPConfig) with a 100+ mail users. I currently use a SMTPRelay with SendGrid for all outcoming mails. I have set a sieve rule for redirecting email to another ...
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73 views

IMAP server responds with “BAD…” error to “LIST…” after similar “LIST” command completes successfully

I'm getting a BAD... error when running a LIST command against an IMAP server that I'm not understanding and could use some help with. I run almost an identical command just prior to it to list the ...
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1answer
45 views

How can I fetch the junk folder from office365 into another imap server?

Office365 put the received mail in the INBOX folder, but also it puts many good emails in the junk folder. How can I fetch the emails from the junk folder into a local imap account, putting them in ...
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2answers
143 views

Office 365 email with shared domain

I am migrating all my company mailoboxes, that actually are located on an internal IMAP server, to a Office 365 tenant. Since the migrating process whould take a quite long time, I need to share the ...
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1answer
127 views

IMAPS, SSL or TLS

Is IMAPS (IMAP over SSL) SSL or TLS? I know TLS is the successor of SSL. But everywhere I look, I always find IMAPS = IMAP over SSL with always the specific mention of SSL and never TLS, which makes ...
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94 views

Server Configuration Error if Receiving e-mails

Another Problem, I have a VPS where I installed a Dovecot, Postfix, PostfixAdmin and Roundcube webmail. I can not receive emails anymore from any external address, I get this Problem: This is the only ...
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56 views

Sieve script does not assign IMAP flags

I am using Dovecot with Sieve, Thunderbird as mail client and want to assign IMAP flags to certain messages. I have a few tags defined in Thunderbird and have the following script: require "...
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69 views

I tried postfix restart, said service isn't running. Yet I am on my working mail server? (cent os)

So I am not sure what I am doing wrong. This all started with the need to let others from outside our network access the SMTP to send email from offsite. So I had in /etc/postfix a check_clients ...
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2answers
34 views

Microsof Exchange 2013 export to 3rd Party cloud hosting

So I'm trying to export mailboxes off of a local exchange 2013 server and upload them to a hosted VPS running IMAP. So basically migrating mailboxes from exchange to IMAP. I was told that I could move ...
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1answer
42 views

Copy emails to another domain on the same VPS

I'm moving my website to another domain on the same VPS. From olddomain.com to newdomain.com. I want to move all emails from hello@olddomain.com to piotr@newdomain.com I'm looking for fast and ...
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0answers
57 views

Dovecot expunge with POP3

I want to have Dovecot remove e-mails from a POP3 inbox that are over a year old, regardless of whether they have been read or not. From what I have read for autoexpunge to work the message should be ...
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0answers
94 views

Dovecot IMAP server failure

I'm trying to configure an email server. I'm using squirrelmail, dovecot and postfix. When I try to login on squirrelmail site it gicves me ERROR: Connection dropped by IMAP server. The /var/log/...
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31 views

Dovecot imap auth in large company

I manage email in large company. They have few emails, but lots of employees who read them. Every email is read from 10+ employees. At the moment, we use password auth and if someone left the ...
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1answer
76 views

Email Disappears between IMAP and POP

I have a client who has an online store, and receives order notifications by email. Their order emails are flowing into their mailbox on the server, but never show up in Outlook. Their Outlook is ...
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1answer
149 views

IMAP Server Autodiscovery

I recently got a VPS and want to start using it to host my websites instead of the Shared Hosting packages that i'm using. Question 1: Is it possible to setup Autodiscovery for the IMAP ...
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0answers
196 views

Debugging postfix/dovecot: Finding out which application is trying to connect from localhost 127.0.0.1

The problem occurs on my mail server, which apart from that works perfectly. Clients can connect via IMAP and Postfix receives and sends out emails without any hassle. Installed software: $> dpkg ...
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1answer
57 views

Retrieving Gmail Mails with Outlook - sorting labels in folders

I found a little trick on how Outlook retrieves mail from Gmail and sort the labels into sub-folders. For that I created a [Gmail] label and nested every other label underneath. It works for some ...
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1answer
298 views

Dovecot: no auth attempts - from local IP

Please note, this is not like the other question asked about the same topic (wrong SSL setup, whatever)! My mail setup works fine, IMAP / POP3 login and smtp is just working. But I have some log ...
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34 views

Strange (mail related) traffic on my server

I'm noticing strange traffic on my webserver which is around 50kbps constantly. Doing a (few seconds worth of) tcpdump on the specific ip address, I get this (pardon the huge list): 09:33:02.385238 ...
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1answer
166 views

Exchange Active Sync Connection Issue

I configured my exchange 2016 server to accept imap SSL 993 connections, however when i try to configure account A (test account with user right only) it received email with no issue, but when i setup ...
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1answer
436 views

Exchange IMAP4 authentication failed

All of the sudden IMAP4 authentication started to fail for my e-mail account. It was working just fine for years, and yesterday I started getting authentication errors. Our organization runs Exchange ...
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0answers
27 views

Moving IMAP mailbox from a Linux server to G Suite

I have my old mailbox, which was hosted by my hosting provider. I want to move it to a new one, like G Suite. To access my old email, I used imap.mydomain.com server. I now moved my site to a new ...
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4answers
399 views

Get new mails immediately

Up to now we get new mails with the tool getmail. It works well. There is a cron job which runs every minute. Is there a way to get the mail faster? I see two ways: Solution 1: run the cron job ...
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1answer
541 views

IMAP/Dovecot sync drafts folder between mail clients

I don't understand how different mail clients work with the mails inside the drafts folder. Firstly the Gmail and Outlook android app doesn't sync any drafts at all despite I selected the drafts ...
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1answer
426 views

Dovecot chdir failed - not a directory

I have set up Postfix + Dovecot with SSL enforced, and while testing with mailutils I'm able to send e-mails to my gmail, but when I try to reply they are not received on my server. With openssl I ...

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